I have a large dataset that when I create a stencil line ModelLayer from it, I get lots of warnings, visual artifacts, and bad performance.
I realize there are technical limitations to the stencil buffer approach for visualizing vector data, but I want to make sure that what I'm seeing is due to the limitations of my graphics card and not my misuse of osgEarth.
Here's one of the many warnings that get output to the console:
bufferOriginalPrecision failed (TopologyException: assigned depths do not match
at 324357 4.10628e+006), trying with reduced precision
recomputing with precision scale factor = 1e+011
Scaler: offsetX,Y: 0,0 scaleFactor: 1e+011
ReScaler: offsetX,Y: 0,0 scaleFactor: 1e+011
And here's the artifacts I see. These are supposed to be building outlines.
As for performance, I'm at single-digit frame rates on my NVIDIA Quadro NVS 160M.
I'm trying to find out if I can release the data to you guys. In the meantime is there anything obvious you can see I'm doing wrong?